CN212341325U

CN212341325U - Loop circuit grounding resistance monitoring device

Info

Publication number: CN212341325U
Application number: CN202020796655.5U
Authority: CN
Inventors: 李虎; 张秋灵; 江启明
Original assignee: Nanjing Yunkai Lightning Protection Technology Corp ltd
Current assignee: Nanjing Yunkai Lightning Protection Technology Corp ltd
Priority date: 2020-05-11
Filing date: 2020-05-11
Publication date: 2021-01-12
Anticipated expiration: 2030-05-11

Abstract

The utility model discloses a resistance monitoring devices that loop circuit connects ground, which comprises a housin, the front surface symmetry fixed mounting of casing has the draw-in groove, and the upper surface of casing is provided with top cap and second recess respectively, and the front surface symmetry fixed mounting of top cap has the buckle that matches with the draw-in groove, and the even fixed mounting of inner chamber lower surface of second recess has a plurality of reset spring, the common fixedly connected with blotter in a plurality of reset spring's upper end, and the upper surface of blotter is provided with resistance tester body and two U type guard plates respectively, and the resistance tester body is located between two U type guard plates. The utility model discloses be provided with blotter and buffer spring in the bottom of resistance tester body, utilize buffer spring's elastic deformation ability, can cushion the vibrations that the resistance tester body received, avoid the resistance tester body to be bumped badly, can not cause loss of property.

Description

Loop circuit grounding resistance monitoring device

Technical Field

The utility model relates to an electrical equipment measures technical field, specifically is a loop circuit grounding resistance monitoring devices.

Background

Thunder is a phenomenon of violent discharge of the charged cloud layer to ground buildings and the earth, and strong lightning current can cause serious damage to the buildings and equipment. In order to reduce loss, a lightning protection device is indispensable on a low-voltage line in various industries related to the electrical industry, and a grounding device is an important link of lightning protection as a path for lightning current discharge and is indispensable for daily monitoring of resistance of the grounding device. The loop method resistance measuring tester is used for measuring the grounding resistance, and the loop resistance of the path can be measured only by enabling the grounding copper bar or the line to penetrate through the test coil. The resistance tester is widely applied to the occasions of electrical safety inspection, grounding engineering completion inspection and the like, and the loop resistance tester is one of the resistance testers.

The existing loop resistance tester has poor protection capability on the internal tester, and the situation that the tester impacts other objects easily occurs when the tester is carried, so that the possibility of damage to an operation screen of the tester is caused, and the loss is caused; and the tester is inconvenient to disassemble and assemble, which causes difficulty in maintenance. Therefore, a loop grounding resistance monitoring device is provided.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a loop ground resistance monitoring device, which solves the problems that the existing loop resistance tester has poor protection capability to the internal tester, and the tester is easy to impact other objects when being carried, thereby causing the possibility of damage to the operation screen of the tester and loss; and the tester is inconvenient to disassemble and assemble, so that the maintenance is difficult.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a loop ground resistance monitoring devices, includes the casing, the front surface symmetry fixed mounting of casing has the draw-in groove, just the upper surface of casing is provided with top cap and second recess respectively, the front surface symmetry fixed mounting of top cap has the buckle that matches with the draw-in groove, the even fixed mounting in inner chamber lower surface of second recess has a plurality of reset spring, and is a plurality of reset spring's the common fixedly connected with blotter in upper end, the upper surface of blotter is provided with resistance tester body and two U type guard plates respectively, the resistance tester body is located between two U type guard plates.

Preferably, the activity groove has been seted up to the inboard symmetry of U type guard plate, every the equal fixed mounting in inboard in activity groove has reset spring, reset spring's one end fixedly connected with rotates the stopper of being connected with U type guard plate.

Preferably, the U-shaped protection plate and the buffer pad are of an integrally formed structure, and the buffer pad is made of a foam material.

Preferably, the upper surface of the resistance tester body is symmetrically and fixedly provided with operating handles, and the outer side of each operating handle is sleeved with a rubber sleeve.

Preferably, a first groove is formed in the upper surface of the shell, a winding roll is rotatably connected to the lower surface of the inner cavity of the first groove, and a connecting line penetrating through the shell is arranged on the outer side of the winding roll.

Preferably, the front surface of the shell is symmetrically and fixedly provided with fixed blocks, and the opposite surfaces of the two fixed blocks are connected with a handle in a rotating mode.

Compared with the prior art, the beneficial effects of the utility model are as follows:

1. the utility model discloses be provided with blotter and buffer spring in the bottom of resistance tester body, utilize buffer spring's elastic deformation ability, can cushion the vibrations that the resistance tester body received, avoid the resistance tester body to be bumped badly, can not cause loss of property.

2. The utility model provides a resistance tester body utilizes U type guard plate to protect to it is spacing under reset spring's effect to utilize the stopper, thereby makes things convenient for dismouting resistance tester body, conveniently maintains.

Drawings

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the connection between the U-shaped protection plate and the shell of the present invention;

fig. 3 is a partial enlarged view of part a of the present invention.

In the figure: 1. a top cover; 2. buckling; 3. a first groove; 4. a housing; 5. a connecting wire; 6. a take-up reel; 7. a card slot; 8. a fixed block; 9. a U-shaped protection plate; 10. a handle; 11. a limiting block; 12. an operating handle; 13. a resistance tester body; 14. a second groove; 15. a cushion pad; 16. a buffer spring; 17. a movable groove; 18. a return spring.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Example 1:

referring to fig. 1-3, a loop ground resistance monitoring device, a single monitoring device no longer carries only one coil, but can carry multiple groups of coils; when the device only needs to measure one of the circuits, only one coil can be accessed, when a plurality of loops need to be measured, a plurality of groups of coils can be accessed simultaneously, the device has two wired communication modes of 485 and RJ45 simultaneously, which mode can be selected to carry out data output and measurement in the field, the data output mode can be selected, a plurality of groups of parallel data can be selected to be output, and the data after comprehensive calculation can also be selected to be output, the device comprises a shell 4, clamping grooves 7 are symmetrically and fixedly arranged on the front surface of the shell 4, a top cover 1 and a second groove 14 are respectively arranged on the upper surface of the shell 4, buckles 2 matched with the clamping grooves 7 are symmetrically and fixedly arranged on the front surface of the top cover 1, a plurality of reset springs 18 are uniformly and fixedly arranged on the lower surface of the inner cavity of the second groove 14, and cushion pads 15 are fixedly connected to the upper ends, the upper surface of blotter 15 is provided with resistance tester body 13 and two U type guard plates 9 respectively, and resistance tester body 13 is located between two U type guard plates 9.

Referring to fig. 2, the inner sides of the U-shaped protection plates 9 are symmetrically provided with movable grooves 17, the inner sides of the movable grooves 17 are fixedly provided with return springs 18, and one ends of the return springs 18 are fixedly connected with limit blocks 11 rotatably connected with the U-shaped protection plates 9, so that the resistance tester body 13 is convenient to disassemble and assemble.

Referring to fig. 2, the U-shaped protection plate 9 and the buffer pad 15 are integrally formed, and the buffer pad 15 is made of a foam material, so as to improve the limiting capability of the resistance tester body 13.

Referring to fig. 1, the upper surface of the resistance tester body 13 is symmetrically and fixedly provided with the operating handles 12, and the outer side of each operating handle 12 is sleeved with a rubber sleeve, so that the resistance tester body 13 can be conveniently lifted.

Referring to fig. 1, a first groove 3 is formed on the upper surface of the housing 4, a winding roll 6 is rotatably connected to the lower surface of the inner cavity of the first groove 3, and a connecting wire 5 penetrating through the housing 4 is disposed outside the winding roll 6.

Referring to fig. 1, the front surface of the housing 4 is symmetrically and fixedly provided with the fixing blocks 8, and the opposite surfaces of the two fixing blocks 8 are jointly and rotatably connected with the handle 10, so that the monitoring device is convenient to carry.

The working principle is as follows: top cap 1 and casing 4 all adopt explosion-proof material to make, and adopt the flexible glue to seal after top cap 1 and the installation of casing 4, waterproof explosion-proof that can be better. During the use, receive vibrations when casing 4, buffer spring 16 takes place elastic deformation, cushions the vibrations that resistance tester body 13 received, avoids producing the collision between resistance tester body 13 and casing 4, and wherein the height of U type guard plate 9 is a little higher than resistance tester body 13, can avoid producing the collision between resistance tester body 13 and top cap 1. When the resistance tester body 13 needs to be disassembled, the top cover 1 is firstly opened, the buckle 2 connected with the top cover 1 is separated from the inside of the clamping groove 7, then the limiting block 11 is pressed, the limiting block 11 rotates into the inside of the movable groove 17, the return spring 18 is compressed at the moment, finally the state of the limiting block 11 is kept unchanged, and the resistance tester body 13 is lifted out of the inside of the second groove 14 by using the operating handle 12.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A loop ground resistance monitoring device, includes casing (4), its characterized in that: the utility model discloses a resistance tester, including casing (4), front surface symmetry fixed mounting of casing (4) has draw-in groove (7), just the upper surface of casing (4) is provided with top cap (1) and second recess (14) respectively, the front surface symmetry fixed mounting of top cap (1) has buckle (2) of matcing with draw-in groove (7), the even fixed mounting of inner chamber lower surface of second recess (14) has a plurality of reset spring (18), and is a plurality of the common fixedly connected with blotter (15) in upper end of reset spring (18), the upper surface of blotter (15) is provided with resistance tester body (13) and two U type guard plate (9) respectively, resistance tester body (13) are located between two U type guard plate (9).

2. The loop ground resistance monitoring device according to claim 1, wherein: activity groove (17), every have been seted up to the inboard symmetry of U type guard plate (9) the equal fixed mounting in inboard in activity groove (17) has reset spring (18), the stopper (11) of being connected are rotated with U type guard plate (9) to the one end fixedly connected with of reset spring (18).

3. The loop ground resistance monitoring device according to claim 1, wherein: the U-shaped protection plate (9) and the cushion pad (15) are of an integrally formed structure, and the cushion pad (15) is made of foam materials.

4. The loop ground resistance monitoring device according to claim 1, wherein: the upper surface symmetry fixed mounting of resistance tester body (13) has operating handle (12), every the outside of operating handle (12) all cup joints the rubber sleeve.

5. The loop ground resistance monitoring device according to claim 1, wherein: first recess (3) have been seted up to the upper surface of casing (4), the inner chamber lower surface of first recess (3) rotates and is connected with take-up reel (6), the outside of take-up reel (6) is provided with connecting wire (5) that run through casing (4).

6. The loop ground resistance monitoring device according to claim 1, wherein: the front surface of the shell (4) is symmetrically and fixedly provided with fixed blocks (8), and opposite surfaces of the two fixed blocks (8) are connected with a handle (10) in a rotating mode.